The mini portable projector is built with a TF card direct reading function, supporting direct playback of video, audio, picture and document files through TF memory card, realizing completely offline projection without mobile phone, computer and network equipment. This independent playback function solves the limitation that traditional projectors must rely on external equipment to play content, making the projector a standalone audio-visual playback device with more independent and convenient use performance. Users can store downloaded movies, dramas, educational videos, meeting documents and photos in the TF card in advance, and insert the card into the projector to play directly.

The TF card direct reading function has strong format compatibility, supporting almost all mainstream file formats on the market, including MP4, AVI, MKV, MOV and other video formats, JPG, PNG and other picture formats, as well as MP3 audio formats and common document formats. It supports high-definition 1080P and 4K video file playback without compression and blur, restoring high-definition picture quality and clear sound quality. The built-in high-speed card reading chip ensures fast file reading speed, no stutter, no loading delay during video playback, realizing smooth and continuous offline playback effect.

This function is extremely practical in multiple offline scenarios. In outdoor camping, mountain leisure, rural accommodation and other no-network environments, users can freely play cached video resources through TF card to realize offline entertainment. In business meetings and teaching demonstrations, they can store meeting materials and courseware in the TF card in advance, plug and play without carrying a computer, improving office and teaching efficiency. For the elderly and children who are not good at operating smart devices, the TF card direct reading mode with simple operation is more friendly, realizing one-click playback and easy operation.

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